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US6443027B1 - Brake actuating system - Google Patents

Brake actuating system Download PDF

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Publication number
US6443027B1
US6443027B1 US09/117,225 US11722598A US6443027B1 US 6443027 B1 US6443027 B1 US 6443027B1 US 11722598 A US11722598 A US 11722598A US 6443027 B1 US6443027 B1 US 6443027B1
Authority
US
United States
Prior art keywords
lever
cable
brake
brake lever
effective
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US09/117,225
Other languages
English (en)
Inventor
John D. Cheever
Michael W. Larson
Andrew J. Caron
Scott A. McLaughlin
David Zimberoff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bank of America NA
SRAM LLC
Original Assignee
SRAM LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US09/117,225 priority Critical patent/US6443027B1/en
Application filed by SRAM LLC filed Critical SRAM LLC
Assigned to SRAM CORPORATION reassignment SRAM CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LARSON, MICHAEL W., MCLAUGHLIN, SCOTT A., CARON, ANDREW J., CHEEVER, JOHN D., ZIMBEROFF, DAVID
Assigned to BANK OF AMERICA, N.A., AS AGENT, A NATIONAL BANKING ASSOCIATION reassignment BANK OF AMERICA, N.A., AS AGENT, A NATIONAL BANKING ASSOCIATION SECURITY AGREEMENT Assignors: SRAM CORPORATION, A CORPORATION OF ILLINOIS
Assigned to BANK OF AMERICA, N.A., AS AGENT reassignment BANK OF AMERICA, N.A., AS AGENT CORRECTIVE ASSIGNMENT TO CORRECT THE RECEIVING PARTY'S ADDRESS, PREVIOUSLY RECORDED AT REEL 011325 FRAME 0409. Assignors: SRAM CORPORATION
Application granted granted Critical
Publication of US6443027B1 publication Critical patent/US6443027B1/en
Assigned to SRAM CORPORATION reassignment SRAM CORPORATION INTELLECTUAL PROPERTY RELEASE Assignors: LASALLE BANK, NATIONAL ASSOCIATION
Assigned to JPMORGAN CHASE BANK N.A., AS AGENT reassignment JPMORGAN CHASE BANK N.A., AS AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SRAM CORPORATION
Assigned to SRAM CORPORATION reassignment SRAM CORPORATION RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Assigned to SRAM, LLC reassignment SRAM, LLC MERGER (SEE DOCUMENT FOR DETAILS). Assignors: SRAM CORPORATION
Assigned to GENERAL ELECTRIC CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT reassignment GENERAL ELECTRIC CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT SECURITY AGREEMENT Assignors: SRAM, LLC
Assigned to SRAM, LLC reassignment SRAM, LLC RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL Assignors: GENERAL ELECTRIC CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT
Assigned to JPMORGAN CHASE BANK, N.A. AS ADMINISTRATIVE AGENT reassignment JPMORGAN CHASE BANK, N.A. AS ADMINISTRATIVE AGENT SECOND LIEN PATENT SECURITY AGREEMENT Assignors: COMPOSITECH, SRAM LLC
Assigned to JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT reassignment JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT FIRST LIEN PATENT SECURITY AGREEMENT Assignors: COMPOSITECH, SRAM LLC
Assigned to COMPOSITECH, INC., SRAM, LLC reassignment COMPOSITECH, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
    • B62L3/00—Brake-actuating mechanisms; Arrangements thereof
    • B62L3/02—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/04—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting mechanically
    • B60T11/046—Using cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/08—Brake-action initiating means for personal initiation hand actuated
    • B60T7/10—Disposition of hand control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20207—Multiple controlling elements for single controlled element
    • Y10T74/20256—Steering and controls assemblies
    • Y10T74/20268—Reciprocating control elements
    • Y10T74/2028—Handle bar type
    • Y10T74/20287—Flexible control element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20402—Flexible transmitter [e.g., Bowden cable]
    • Y10T74/20408—Constant tension sustaining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20402—Flexible transmitter [e.g., Bowden cable]
    • Y10T74/2042—Flexible transmitter [e.g., Bowden cable] and hand operator
    • Y10T74/20438—Single rotatable lever [e.g., for bicycle brake or derailleur]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20474—Rotatable rod, shaft, or post
    • Y10T74/20486—Drum and cable

Definitions

  • This invention relates in general to hand-actuated bicycle brakes, and more particularly to a brake system exhibiting an increase in mechanical advantage over the range of motion of a brake lever.
  • Bicycle brakes can broadly be classified as handlebar brakes and pedal brakes, depending upon the location where a rider actuates the brakes.
  • handlebar brakes are actuated at the bicycle handlebar by a rider squeezing a brake handle of a brake lever assembly against the handlebar with his hands, and pedal brakes are actuated at the bicycle pedals.
  • the present invention is an improvement to handlebar brakes.
  • braking force is a function of the force applied to a brake cable extending between the brake mechanism and a brake lever assembly.
  • a brake lever assembly consists of a brake handle including a finger grip bar and a transverse mounting arm.
  • the mounting arm is attached to the bicycle handlebar (denoted as 100 in FIGS. 6 and 7) by a mounting bracket for pivotal movement relative to the mounting bracket about a fixed axis.
  • the brake cable is attached to the mounting arm at a selected distance from the fixed axis.
  • Bicyclists particularly avid bicyclists, each have a preferred feel for their bicycle brakes. Riders tend to anticipate the braking force that will result based upon the feel of their brakes. This feel is particularly important in high performance bicycling, such as off-road mountain biking, where applying too much braking force under certain conditions can cause the wheels to lock, resulting in a potentially dangerous loss of rider control. Likewise, too little braking force can have disastrous consequences. Thus, not only is a particular brake feel a matter of user preference, in performance situations a consistent feel contributes to rider safety. To complicate matters, as brake pads wear, the feel of brakes can vary during a ride, particularly during off-road biking where dirt and grit increase brake pad wear and where brakes must be used often and aggressively.
  • An alternative known in the art to adjustment to the brake mechanism to alter the brake feel is providing a structure in the brake lever assembly for varying the perpendicular distance between the fixed axis and the brake cable. This distance is known as the pivot arm.
  • Known prior art devices provide a plurality of holes along the length of the mounting arm at various distances from the fixed axis. While this structure does provide for coarse adjustment of the brake feel, the adjustment is only among pre-selected distances between the fixed axis and the point of attachment of the brake cable. Thus, only a limited number of pivot arm distances, and therefore brake feels, are available.
  • this structure does not require disassembly of the brake mechanism to adjust the brake feel, it does require disassembly of the brake lever assembly to reposition the point of attachment of the brake cable to the mounting arm.
  • disassembly of the brake lever assembly to reposition the point of attachment of the brake cable to the mounting arm.
  • Another prior art device employs a slotted lever mounting arm whereby the point of attachment of the brake cable is allowed to transition between varying distances with respect to the fixed axis.
  • the noted device provides a varying brake feel, the device also suffers from several drawbacks.
  • the most significant drawback is the abrupt transition of the mechanical advantage and, hence, the force applied to the brake cable.
  • the mechanical advantage is inversely proportional to the pivot arm. The smaller the pivot arm, the greater the power or braking force applied to the brake cable. Therefore, it is crucial that the increase in mechanical advantage be smoothly varying and therefore predictable.
  • a brake operating device includes a mounting brake attached to a bicycle handlebar which has a cable guide.
  • a brake lever is pivotally attached to the mounting bracket.
  • One end of the brake cable is routed along the cable guide and is attached to the brake lever at a fixed point, thereby forming an effective cable attachment point.
  • the mounting bracket and the brake lever are configured, and the effective cable attachment point disposed relative to the lever pivot, such that actuation of the brake lever about the lever pivot displaces the cable in a direction transverse to the cable length toward the lever pivot. This provides at least a 33% increase in mechanical advantage over the actuation range of the brake lever from a fully retracted to a fully deflected position.
  • FIGS. 1 and 2 are schematic diagrams illustrating the rotation of levers having two effective radii
  • FIGS. 3 and 4 illustrate the operation of a prior art, slotted brake lever system
  • FIG. 5 is a graph of pivot arm length versus lever angle for a prior art brake operating system and a brake operating system according to the invention
  • FIG. 5 a is a graph of mechanical advantage versus lever pull angle of a prior art brake operating device and a brake operating device according to the invention
  • FIG. 6 is an elevational view of a brake lever mechanism according to a first embodiment of the invention.
  • FIG. 7 is an elevational view of a second embodiment of the invention.
  • FIG. 7 a is an isometric view of a third embodiment of the invention.
  • an optimum lever assembly would provide maximum displacement and minimal caliper force over the transition period, defied as the onset of braking through initial brake contact (i.e. calipers fully retracted through caliper contact with the rims), and minimum displacement and maximum caliper force thereafter.
  • caliper force it is meant the braking force resulting from a predetermined mechanical advantage associated with the brake lever mechanism.
  • a brake lever 20 includes an elongated slot 22 disposed on the end of the lever 20 opposite pivot B.
  • the slot 22 is adapted to slidably receive a cable roller 24 which is operatively connected to a brake cable 26 .
  • FIGS. 5 and 5 a illustrate graphs of pivot arm length versus lever angle, and mechanical advantage versus lever pull angle, respectively, for a prior art system 5 corresponding to that shown in FIGS. 3 and 4, and a system 2 according to the invention.
  • the transition (denoted T) from point C (R EFF ) to D (R′ EFF ) for the prior art system 5 is quite abrupt, producing undesirable and, in many instances, hazardous braking characteristics.
  • the present invention substantially reduces or eliminates the disadvantages and shortcomings associated with prior art brake mechanisms.
  • the brake mechanism of the invention provides the optimal, maximum displacement and minimum caliper force over the transition period, and minimum displacement and maximum force thereafter.
  • a key characteristic of the invention is that the transition from the maximum to minimum displacement (and minimum to maximum force) is substantially uniform. Additionally, according to the invention, the increased mechanical advantage of slotted levers 20 is achieved without the use of complex slotted mechanisms.
  • a brake mechanism indicated generally at 30 includes a mounting bracket 32 , a brake lever 34 , a pivot pin 36 and a brake cable 38 .
  • the cable 38 includes a cable end 40 which is adapted to engage the lever socket 42 .
  • the mounting bracket 32 is used to mount the brake mechanism 30 to a bicycle handlebar 43 .
  • the cable 38 is entrained through a cable guide 52 , which in the illustrated embodiment is formed as a portion of mounting bracket 32 and which is fixed relative to the handlebar 43 .
  • the mechanism 30 In operation, at Position 1 (i.e, fully retracted) the mechanism 30 has an effective radius, or pivot arm, R EFF .
  • the effective radius is defined as the perpendicular distance from the pivot 36 to the brake cable 38 .
  • the cable 38 does not contact the effective spooling radius 44 throughout the range of motion from Position 1 to Position 2 .
  • the effective spooling radius over the lever range of rotation.
  • various effective spooling radius configurations may be employed to achieve the desired limiting effect.
  • various effective spooling radii may be achieved through the use of one or more user-adjustable separate inserts as depicted by phantom lines 60 in FIG. 6 .
  • FIG. 7 a there is shown yet another embodiment of the invention indicated generally at 90 where the limiting effect may be user adjusted.
  • a removable insert 100 is slidably received by brake lever 34 through slot 102 thereby allowing the user to achieve the desired limiting effect.
  • the rate of change of the mechanical advantage is primarily a function of ⁇ and RECA (see FIG. 6 ), where ⁇ is the angle between a line coincident with the effective radius R EFF and line 46 drawn between pivot 36 and the effective cable attachment 48 , where R ECA is the distance between pivot 36 and the effective cable attachment 48 along line 46 .
  • effective cable attachment it is meant the point where the cable contacts the outer periphery 50 of the lever 34 and is tangent thereto.
  • the outer periphery 50 of the lever 34 is contoured from the cable attachment point towards the lever pivot 36 thereby varying the effective cable attachment during lever rotation. Such a device will achieve an increasing mechanical advantage that is nonlinear (not shown in FIG. 5 a ).
  • the mounting bracket 32 and brake lever 34 must be configured to permit the cable 38 to be displaced during lever actuation both along the cable length and in a direction transverse to the cable length so as to achieve the desired increasing mechanical advantage benefits. Additionally, the increase in mechanical advantage must be sufficient to generate enough cable force and braking power. Accordingly, the brake lever device of the invention achieves at least a 33% increase in mechanical advantage over the actuation range of the brake lever 34 from a fully retracted position (e.g., Position 1 in FIGS. 6 and 7) to a fully deflected position (i.e., the point at which the brake lever 34 contacts handlebar grip 70 ).
  • the brake lever 34 of the invention achieves at least a 20% increase in mechanical advantage over the lever actuation from a fully retracted lever position to a 30 degree deflected position.
  • the brake lever 34 is pivoting rotationally outboard with respect to the bicycle frame.
  • ⁇ ranges from 30°-55° and R ECA ranges from 2.0 to 3.0 inches. More preferably, ⁇ equals 45° and R ECA equals 2.3 inches.
  • ⁇ ranges from 30°-50° and R ECA ranges from 1.2 to 2.5 inches. More preferably, ⁇ equals 45° and R ECA equals 1.6 inches.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Mechanical Control Devices (AREA)
US09/117,225 1996-01-26 1997-01-21 Brake actuating system Expired - Fee Related US6443027B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US09/117,225 US6443027B1 (en) 1996-01-26 1997-01-21 Brake actuating system

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US1066696P 1996-01-26 1996-01-26
US09/117,225 US6443027B1 (en) 1996-01-26 1997-01-21 Brake actuating system
PCT/US1997/000763 WO1997027405A1 (fr) 1996-01-26 1997-01-21 Systeme d'actionnement de frein

Publications (1)

Publication Number Publication Date
US6443027B1 true US6443027B1 (en) 2002-09-03

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ID=21746821

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/117,225 Expired - Fee Related US6443027B1 (en) 1996-01-26 1997-01-21 Brake actuating system

Country Status (5)

Country Link
US (1) US6443027B1 (fr)
EP (1) EP0876557B1 (fr)
AU (1) AU1702497A (fr)
DE (1) DE69723958T2 (fr)
WO (1) WO1997027405A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030121739A1 (en) * 2001-12-28 2003-07-03 Avid, L.L.C. Master cylinder lever for a hydraulic disc brake having favorable handle pivot geometry
US20060169094A1 (en) * 2005-01-20 2006-08-03 Shimano Inc. Bicycle handlebar
US20070090145A1 (en) * 2005-10-25 2007-04-26 Metso Paper, Inc. Vacuum Belt Conveyor of a Web Forming Machine for Transferring a Threading Tail
US20080155982A1 (en) * 2006-12-28 2008-07-03 Jones Christopher S Hydraulic Brake Master Cylinder
US20080257658A1 (en) * 2001-12-28 2008-10-23 Sram Corporation Method and Apparatus for Adjusting a Lever Actuated Hydraulic Disc Brake Master Cylinder
JP2019002488A (ja) * 2017-06-15 2019-01-10 日本フレックス工業株式会社 遠隔操作用コントロールケーブル装置
EP4253210A1 (fr) 2022-04-01 2023-10-04 Hopper Mobility GmbH Système d'anneau de levage de frein

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5865064A (en) * 1996-02-12 1999-02-02 Shimano Inc. Brake lever stroke adjusting mechanism
US6053068A (en) * 1996-02-12 2000-04-25 Shimano Inc. Brake lever stroke adjusting mechanism
EP0894702B1 (fr) * 1997-07-30 2006-06-21 William Bolick Commande par câble
DE19922328A1 (de) * 1999-05-14 2000-11-16 Sram De Gmbh Seilführung in einem Schalter für Fahrradgetriebe
CN113291403A (zh) * 2021-05-27 2021-08-24 北京骑胜科技有限公司 制动系统、制动方法和车辆

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Publication number Priority date Publication date Assignee Title
FR670628A (fr) 1929-03-01 1929-12-02 Procédé de fabrication des manettes de commande par transmissions flexibles, de différents organes tels que des freins de cycles et motocycles ou analogues
US2854857A (en) 1954-05-03 1958-10-07 Bendix Aviat Corp Flexible remote actuating means for a two-speed coaster brake
US3362238A (en) * 1965-03-29 1968-01-09 Shimano Industrial Co Speed change gear mechanism for a bicycle
US4088040A (en) * 1977-01-03 1978-05-09 Ross Myring Brian 360° Cable actuating lever
US4132296A (en) * 1976-09-13 1979-01-02 Joel Evett Shift lever and integral handbrake apparatus
US4156371A (en) * 1976-04-02 1979-05-29 Le Simplex Multi-functional control lever for speed change devices of bicycles and similar vehicles
DE2900374A1 (de) 1978-02-07 1979-08-09 Motobecane Ateliers Vorrichtung zum aufstellen eines zweiradfahrzeuges auf eines seiner raeder und einen mittelstaender
US4193318A (en) * 1978-01-27 1980-03-18 Conchemco, Incorporated Brake lever
USD264700S (en) * 1979-02-16 1982-06-01 Cycles Peugeot Cable guide for variable speed transmission such as derailleurs
US4437357A (en) * 1980-11-28 1984-03-20 Maeda Industries, Ltd. Double lever assembly for bicycle speed control
US4461189A (en) * 1980-04-03 1984-07-24 Gustav Magenwirth Gmbh & Co. Gas twist grip for handlebars of motor-driven two-wheeled vehicles
US4658667A (en) 1985-01-22 1987-04-21 Fichtel & Sachs Ag Gear-change device for a multi-ratio gear-change hub for bicycles or the like
EP0285517A1 (fr) 1987-03-31 1988-10-05 Société dite STAUB INDUSTRIE S.A. Dispositif de commande de transmission par câble, actionné par le pouce
US4840081A (en) 1987-02-18 1989-06-20 Shimano Industrial Company Limited Speed-change operating lever for a bicycle
EP0515160A1 (fr) 1991-05-21 1992-11-25 Morse Controls Limited Dispositif de commande à distance
US5176042A (en) * 1992-02-10 1993-01-05 Huffy Corporation Hand brake actuator
EP0593842A1 (fr) 1992-10-19 1994-04-27 Yoshigai Kikai Kinzoku Co., Ltd. Dispositif de commande de frein pour bicyclettes
JPH079693A (ja) * 1993-06-21 1995-01-13 Fuji Xerox Co Ltd イオン流制御記録ヘッド
US5448927A (en) 1994-05-03 1995-09-12 Avid Enterprises, Inc. Adjustable leverage brake lever
US5575178A (en) 1995-08-22 1996-11-19 Wu; Chin-Chang Brake handle
US5674142A (en) * 1996-04-16 1997-10-07 Sram Corporation Control cable adjustment device
USD386734S (en) * 1996-07-02 1997-11-25 Shimano Inc. Brake lever for a bicycle
US5946978A (en) * 1997-11-13 1999-09-07 Shimano Inc. Cable adjustment device
US5979266A (en) * 1989-12-26 1999-11-09 Shimano Industrial, Co. Brake control apparatus for bicycle
US6053068A (en) * 1996-02-12 2000-04-25 Shimano Inc. Brake lever stroke adjusting mechanism

Patent Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR670628A (fr) 1929-03-01 1929-12-02 Procédé de fabrication des manettes de commande par transmissions flexibles, de différents organes tels que des freins de cycles et motocycles ou analogues
US2854857A (en) 1954-05-03 1958-10-07 Bendix Aviat Corp Flexible remote actuating means for a two-speed coaster brake
US3362238A (en) * 1965-03-29 1968-01-09 Shimano Industrial Co Speed change gear mechanism for a bicycle
US4156371A (en) * 1976-04-02 1979-05-29 Le Simplex Multi-functional control lever for speed change devices of bicycles and similar vehicles
US4132296A (en) * 1976-09-13 1979-01-02 Joel Evett Shift lever and integral handbrake apparatus
US4088040A (en) * 1977-01-03 1978-05-09 Ross Myring Brian 360° Cable actuating lever
US4193318A (en) * 1978-01-27 1980-03-18 Conchemco, Incorporated Brake lever
DE2900374A1 (de) 1978-02-07 1979-08-09 Motobecane Ateliers Vorrichtung zum aufstellen eines zweiradfahrzeuges auf eines seiner raeder und einen mittelstaender
USD264700S (en) * 1979-02-16 1982-06-01 Cycles Peugeot Cable guide for variable speed transmission such as derailleurs
US4461189A (en) * 1980-04-03 1984-07-24 Gustav Magenwirth Gmbh & Co. Gas twist grip for handlebars of motor-driven two-wheeled vehicles
US4437357A (en) * 1980-11-28 1984-03-20 Maeda Industries, Ltd. Double lever assembly for bicycle speed control
US4658667A (en) 1985-01-22 1987-04-21 Fichtel & Sachs Ag Gear-change device for a multi-ratio gear-change hub for bicycles or the like
US4840081A (en) 1987-02-18 1989-06-20 Shimano Industrial Company Limited Speed-change operating lever for a bicycle
EP0285517A1 (fr) 1987-03-31 1988-10-05 Société dite STAUB INDUSTRIE S.A. Dispositif de commande de transmission par câble, actionné par le pouce
US5979266A (en) * 1989-12-26 1999-11-09 Shimano Industrial, Co. Brake control apparatus for bicycle
EP0515160A1 (fr) 1991-05-21 1992-11-25 Morse Controls Limited Dispositif de commande à distance
US5176042A (en) * 1992-02-10 1993-01-05 Huffy Corporation Hand brake actuator
EP0593842A1 (fr) 1992-10-19 1994-04-27 Yoshigai Kikai Kinzoku Co., Ltd. Dispositif de commande de frein pour bicyclettes
JPH079693A (ja) * 1993-06-21 1995-01-13 Fuji Xerox Co Ltd イオン流制御記録ヘッド
US5448927A (en) 1994-05-03 1995-09-12 Avid Enterprises, Inc. Adjustable leverage brake lever
US5575178A (en) 1995-08-22 1996-11-19 Wu; Chin-Chang Brake handle
US6053068A (en) * 1996-02-12 2000-04-25 Shimano Inc. Brake lever stroke adjusting mechanism
US5674142A (en) * 1996-04-16 1997-10-07 Sram Corporation Control cable adjustment device
USD386734S (en) * 1996-07-02 1997-11-25 Shimano Inc. Brake lever for a bicycle
US5946978A (en) * 1997-11-13 1999-09-07 Shimano Inc. Cable adjustment device

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7617913B2 (en) 2001-12-28 2009-11-17 Sram, Llc Method of varying a rest position and a length of an actuation arc of a lever in a hydraulic disc brake system
US20090000878A1 (en) * 2001-12-28 2009-01-01 Sram Corporation Method of Varying a Rest Position and a Length of an Actuation Arc of a Lever in a Hydraulic Disc Brake System
US7204350B2 (en) * 2001-12-28 2007-04-17 Sram Corporation Master cylinder lever for a hydraulic disc brake having favorable handle pivot geometry
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US8074774B2 (en) 2001-12-28 2011-12-13 Sram Llc Master cylinder lever with variable dead band and variable reach adjustment independent of the dead band adjustment
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Also Published As

Publication number Publication date
DE69723958T2 (de) 2004-02-26
DE69723958D1 (de) 2003-09-11
WO1997027405A1 (fr) 1997-07-31
EP0876557A1 (fr) 1998-11-11
EP0876557B1 (fr) 2003-08-06
AU1702497A (en) 1997-08-20
EP0876557A4 (fr) 1999-12-15

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